Which of the following can be found in an animal cell, but not a plant cell?
a. centrosomes
b. mitochondria
c. DNA
d. ribosomes
a. centrosomes
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When transporting uncharged molecules across the membrane, which of the following is/are false?
A) Keq is always equal to one. B) ?G is not dependent upon a gradient. C) Movement requires a transport protein. D) ?G° is always equal to zero. E) both choices A and B
In which part of a chloroplast does photosynthesis occur?
a. stroma b. outermost membrane c. innermost membrane d. between the two outer membranes e. ribosomes
Bacillus infernus is a bacterial species that may be found living
a. at 75°C (167°F) on rocks 3 kilometers beneath earth's surface. b. in our vegetables c. in glaciers. d. at 37°C in our body. e. in all of these locations.
V-onc genes are found in
A) vital cells. B) viral cells. C) cancer-causing retroviruses. D) very rapidly growing cells. E) bacteriophages.